Strictly CPFs and Nikkys since day one for all of my kids. I have never used disposies, or any other system. I do have an AYN which I love for naps on my toddler, and a few choice wool covers from my favorite WAHM, though. I use the wool at night.
I love the simplicity, and the cost allows us to have a service rather than wash myself. (It also allows our family to be able to welcome more kiddos, live in a home we won't grow out of anytime soon, renovate, vacation, eat out, put away $$$ for college, get cool baby clothes, buy clothes as needed for me or dh, etc without worry for the financial future)
I like all of the other options out there as far as AIOs, fitteds, pockets, and such, but the time spent in diapers is so brief, and I would rather spend hubby's hard earned money in areas that everyone in our family can appreciate. (Did I mention that my DH is a snappi/CPF Pro? I guess he HAS had the benefit of over 5 years of practice.......)
(ds 4, ds 2, and baby#3 comming soon)